Shinohara worked as an assistant under Hideaki SorachionGintama for a short time using the alias Shintaroh Nakae (なかえ しんたろう, Nakae Shintarō), an anagram of "Kenta Shinohara".[4] During his stint with Sorachi, Shinohara called him a "teacher" who taught him necessary skills.[4]
In both June and September 2003, Shinohara was a finalist for the monthly Jump 12 Outstanding Rookie Manga Award, though he did not win either awards.[5] In 2005, he debuted in Akamaru Jump's Winter Issue with the article "Red Panda Puppet Show".[2][6]
Shinohara wrote two one-shots for Sket Dance in the winter and summer of 2006, submitting them to Akamaru Jump and Weekly Shōnen Jump respectively. The second one-shot was a pilot arranged in a book volume format, similar to the eventual first chapter of the main series.[5] Serialization of Sket Dance began on 14 July 2007 in Weekly Shōnen Jump issue 33. In 2010, it won the 55th Shogakukan Manga Award in the shōnen category.[7] An anime adaptation by Tatsunoko Productions began airing the following year. After 288 chapters, Sket Dance ended serialization in 2013.
In the fifteenth volume of Sket Dance, released on 1 September 2010, Shinohara announced that he would be getting married.[8] He is the brother-in-law of fellow manga artist Kentaro Yabuki.[9]
Shinohara wrote the lyrics for Water Color (ウォーターカラー), a track within The Sketchbook's 2012 album Sketchbook. He stated that this was the first time he had ever written song lyrics, and that he had based them on his feelings about the "coolness" of the music.[10] He worked on the original character designs for the 2014 anime Battle Spirits: Burning Soul.[11]
Shinohara began the fantasy manga Witch WatchinWeekly Shōnen Jump Issue No. 10 in 2021. It is simultaneously published overseas via Manga Plus and Viz Media.[16]
^ ab"篠原健太 - 受賞履歴 - 作品履歴" [Kenta Shinohara - Award History - Work History]. Mezefilart (in Japanese). 2007. Archived from the original on 3 June 2009. Retrieved 4 November 2015 – via GeoCities Japan.
^"漫画の部屋 - ジャンプの部屋・赤マルジャンプ2005 WINTER感想" [KTR's Comic Room - Weekly Jump Room 2005: Akamaru Jump 2005 WINTER Impressions]. KTR (in Japanese). 29 December 2004. Retrieved 3 November 2015.